Possibly some related resources:Color deficiency simulator: http://www.visibone.com/colorblind/ another simulator: http://www.vischeck.com/ Color perception paper: http://www.4colorvision.com/files/colorcontrperf.htm#equations Color tool: http://www.colorfield.com/index.html Example color contrast ratios: http://juicystudio.com/services/coloursaferatio.php Color blindness theory: http://steve.hollasch.net/cgindex/color/color-blind.html Study showing accessibility barriers: (see Table 5 - all groups, except completly blind, identified poor color contrast as a problem.) http://www.drc-gb.org/PDF/2.pdf Study showing algorithm can predict which colors people find readable: http://www.aprompt.ca/WebPageColors.html Color FAQ: http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html enjoy at will, David Bill Haneman wrote: Hi Henrik: <"What he said" > You and Carlos put this very well. I agree with you both that this sounds like a great thing to add to gnome-mag. By the way, Carlos has recently done some very nice work to enable fullscreen magnification without requiring two X screens, so based on this new work (still in bugzilla, but soon to be in cvs we hope), this could be done pretty elegantly at "1:1" without noticeably changing the user experience. Best regards Bill p.s. - gnome-mag magnifies at '1x' if you run it with "-z1". To use this in fullscreen mode without changing your Xorg.conf will require Carlos' patch to http://bugzilla.gnome.org/show_bug.cgi?id=348375. Henrik Nilsen Omma wrote:Daniel Ruoso wrote:I think that these filters could be implemented easily in gnome-mag. Probably Bill and Willie can give more advices about it.The question is that colorblindness filters aren't exactly related to screen magnifier. I'm colorblind, but I don't need a screen magnifier.Perhaps not in your case, but there is a lot of potential overlap. gnome-mag manipulates the screen image real time (and has a simple inverse mode) which the filters also do. I'm sure gnome-mag could be set to 'magnify' at 1x. Some people would want to use both magnification and a filter. Separate implementations may still be the best option for technical reasons or to have simpler configuration of each. But in that case they should at least work well together. Henrik _______________________________________________ gnome-accessibility-list mailing list gnome-accessibility-list gnome org http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list_______________________________________________ gnome-accessibility-list mailing list gnome-accessibility-list gnome org http://mail.gnome.org/mailman/listinfo/gnome-accessibility-list |